Answer:
[tex]W=100\sqrt{2}[/tex] [tex]Meters[/tex]
Step-by-step explanation:
[tex]A=LxW[/tex]
[tex]20^2m=2\sqrt{2} W[/tex]
[tex]2\sqrt{2}[/tex] [tex]2\sqrt{2}[/tex]
[tex]W=20^2[/tex]
[tex]2\sqrt{2}[/tex]
[tex]W=10^2\sqrt{2}[/tex]
[tex]W=100\sqrt{2}[/tex] [tex]Meters[/tex]